Nose-clamp for eyeglasses.



G. A. BADER.

NOSE CLAMP FOR EYEGLASSES.

, APPLICATION FILED'FEB. 19, 1913.

Patented May 9, 1916.

Wfi1t11 a 1111111121111)? WW8 g 0361M D. Q

GUSTAV A. BADER, or noonnsrnn, New YORK.

NOSE-CLAMP FOR EYEGLASSES.

To all whom it. may concern Be it known thatI, GUs'rAvA. BADEB, acitizen of the United States, and residentof Rochester, in the county ofMonroe and State ofNew York, have invented'certain new and usefulImprovements in Nose- Clamps for Eyeglasses, of which the following is aspecification.

This invention relates to nose-clamps or nose-guards of the type inwhich a facing of celluloid, orother hard but non-metallic material, isprovided atthe nose-engaging surface of the nose-clamp,.to preventdlrect engagement of the metallic parts with the I nose, or to increasethe adhesionoof the nose-clamp to the skin.

Nose-clamps of the type in question are commonly constructed by punchingout a piece of sheet-metal and a piece of cellulo d,

or other hard plastic material, in. sheet.

form, and by then. riveting the facing-material to the sheetmetal,thenose-engaglng surface of the facing-material being usually corrugatedor roughened. In such a monstruction the edge of the facing-material 1susually sharp and more" or less rough, as

the result of the punching-operation,and/the edge of the metal backingorbody isuncovered and unprotected. In assembling the parts it isdiflicult to insure the exact coincidence of their edges when the partsare riveted together, and for'this and the foregoing reason the edges ofa nose-clamp constructed in this manner present a rough and unfinishedappearance, unlesssubpcted to a special finishing operation. V

The object of the present invention is to produce a nose-clamp in whichthese ob ections are avoided in a novel and simple manner, and withoutsubstantial increase in the cost of manufacture.

To the foregoing end I employ, in combination with a sheet-metal body orbacking of any ordinary or suitable form, a facing of plastic materlal,such as any of the Well known cellulose compounds this facing having thegeneral form and dimensions of the metal part, but having a rear-vwardly-projecting marginal flange which closely embraces the edge of themetal, so as to partly or wholly cover this edge, thus producing asmooth and neat finish, and at Specification of Letters Patent.

ingthe present invention, looking toward,

. Patented May 9, 1916.- Application filed. February 19, 1913. SerialNo. 749,557.

the outer surface of the nose-clamp; Fig. 2 I

is a similar view of a nose-clamp in which the invention is applied to aself-adjusting;

nose-padforming a portion only of the nose-engaging surface; Fig. 3 is asection on the line 3-3 in Fig. 1 looking downwardly; and Fig. 4 is aperspective view, of the facing-me1nber of the nose-pad shown brokenaway.

In Figs. l-and 3 the invention is illus trated as embodied in anose-clamp of the well knownform in Which a single, rigidmetal in theusual manner, while its innersurface is covered with a facing 6 ofcellu- 'inFig 2, looking toward the inner surface, and with the upperportionof the member.

loid or other suitable plastic material, this 'facing'being fixed to themetal, in the usual, manner, by. meansof rivets 7. In accordance withthe present invention the facingmember is recessed at'itslouter surface,so as to receive thebody 5 and to provide a marginalrearwardly-projecting flange 8,

which extendsacross the edge of the body.

The inner or nose-engaging surfaceof the facing 1s shown as roughened inthe usual manner, for more secure engagement with the nose, whilethezflange8 is smooth.

The facing-member, as just described, may be formed in any preferredmanner, but it is most readily and inexpensively formed by punching andpressing sheet-material of suitable thickness. Thepunching and pressingoperations may be performed by a single pair of tools or dies and at asingle opera tion, the material. in the case of celluloid, be-

ing warmed to increase its plasticity. The" recesses and PTOJBCUODS onthe roughened surface maybe formed upon the sheet, before the punchingand stamping operation, but they are preferably formed by means of thepressing-dies, thus further simplifying and cheapening the manufactureof the device. The angle 9 between the inner surface of the facing andthe flange 8 is free from sharpness or roughness, since it is formed bybending the material and not by the shearing operation, and it may berounded as much as isdesirable by a suitable formation ofthe dies,though a fairly definite .angle is preferable for the sake of a secureengagement with the nose.

The marginal flange on the facing-member assists the operation ofassembling the parts, since it automatically secures correctregistration between them during the opera tion of riveting, and tosecure this advantage and the advantage of avoiding a sharp and rou 'hangle, only a slight rearward projection or narrow flange is necessary.Preferably, however, the flange is made Wvide enough to substantially orentirely cover the edge of the metal, so as to conceal this edge andthus produce a neat finish regardlessfof any roughness'which may beproduced in the metal in the shearing operation by w'hich the metal isformed. In this connection the invention has a particular value in themanufacture of eye-glasses of goldfilled material or gold-platedsheet-metal. As shown in Fig. 3, the body 5n1ay be made of acomparatively thick sheet 10 of basemetal provided with a facing orplating 11 of gold. In nose-clamps as previously manufactured of suchmaterial the gold-facing or plating'does not cover the sheared edge ofthe sheet-metal, and accordingly the base-metal'is particularlysubjectat the edge to corrosion by the'moisture ofthe skin. In thepresent construction theflange 8 may be formed to completely cover andprotect the edge of'the base-metahso that it is invisible and'is, to alarge degree, protected from such corrosion. i Y

In addition to the advantages of the novel facing of the presentinvention which have previously been pointed out, this facing has .thefurther advantage that the rigid marginal flange contributessubstantially to, the

security and permanency of theattachinent between the facing and thebody of the nose clamp. Where afacing of hard and comparatively rigidmaterial, such as celluloid, is afliXedto a metal body of irregular orcurvilinear form, such, for example, as that Copies 01' this patent maybe obtained for shown in Fig. 1 of the drawings, it is diflicult tomaintain the facing and the body with their edges in alinement,particularly as the nose-clamp is liable to be bent, either through thestrains incident to use, or in order toadapt it to fit snugly againstthe nose of the wearer. Since there is nocement by which such rigid andimpervious materials as celluloid and metal can be securely andpermanently fastened together, the parts are usually fastened by rivets,as shown and described in the present application, and whenever'thenose-clamp is bent as just described relative displacement of the parts111 their plane of contact is liable to occur atthe longdisconnectedportions between the rivets or points of attachment. Suchdisplacement is positively prevented, however, in the presentconstruction by the engagement'of the rigid .outwardly projecting flangeon the facing flange which closely embraces'the edges'ofthe body andextends substantially flush with the outer surface of thefbody; andmechani} cal fastenings connecting the body and the facing at pointsinside theirperime'ters.

eUs'rAv A. BADER.

l/Vitnesses:

FARNUM F. Dorsey, D. GURNEE.

five cents each, by addressing the Commissioner of Patents, Washington,D. G. i i

